Pipe-coupling.



i R. L., BEAT'11E.. '.PIPB GOUPLING.

APRLIOAT'ION FILED SEPT. 5, 1912.

1,082,993u IPatented Dec. 30, 1913.

'gg `l .aTinnT orio.

A RICHARD LANDGRIGE BEATTIE, OF WINNIFEG, MANITOBA, CANADA.

PIPE-COUPLING.

Specification of Letters Patent.

Patented Dec. 30, 1913.

Application filed September 5, 1912. Serial No. 718,618.

T0 all whom t mayconcern.'

Be it known that I, RICHARD LANDGRIGE BEArrIn, of the city of Winnipeg, inthe Province of Manitoba, Canada, have invented certain new and useful Improvements in' Pipe-Couplings, of which the following is' the speciication.

The. invention relates toa coupling for connecting pipes, and the object of the invention is to provide an edectiverdurable and inexpensive coupling which can be readily removed from the pipes, and it consists essentially of two sections supplied each with extending tongues and recesses adapted' to be fitted together to form a complete coupling, the parts being arranged and con-4 structed as hereinafter more particularly described, reference-being had to the accompa nying drawing in which- Y i Figure 1 represents an enlarged perspective view of the coupling with the sections pulled apart. Fig. 2 is a side elevation of the coupling supplied von the pipes. Fig. 3 is a vertical sectional view through the coupling, the section being taken at the point indicated by the line X X', Fig. 2. Fig/1 -easily disconnected. The pipe hasy either to is a verticalv longitudinal sectional view through the pipe and couplings.

In the drawing like characters of reference indicater corresponding partsfin each ligure.

Considerable diiliculty is oftentimes experienced in removing the ordinary coupling from the usual 4iianged end 'of a pipe in instances where the flanged pipe cannot be be removed and the coupling slipped off the `end or the coupling has tobe cut. My coupling is constructed to avoid this' difficulty as it can be taken off immediately it is unscrewed as will shortly be apparent.

1 represents the coupling which comprises two complementary-sections 2 and 3 adapted to be fitted together when in use. Each section is interiorly threaded at 11 and fitted with a shoulder 5 and is supplied at one side with a pair of extending tongues 6 and 7 and at the other side with a single centrally located tongue 8. A recess or pocket9 is reserved in each section between thetongues 6 and 7 and further recesses orpockets are formed at 10 and 'l1 at each side of' the central tongue 8.

The tongues are not the full thickness of thecon 1er so .that a shoulder appears at 12,

wh ch shoulders dt together when the sec-.A

are brought together they form a coupling' of ordinary appearance with an internal thread and a .continuous shoulder all around.

To understand the value of this coupling I will now describe it as applied on pipes. l5 represents apipe having an out turned flange 16, and 17 a further exteriorly threaded pipe which it is required to connect to the pipe 15, it being noticed that 'the'eX- ternal diameter of the pipe 15 is consider` ably smaller than that 'of the pipe 17. A washer 18 is inserted between the ends of the vpipes to make a tight joint and the split cou pling is closed around the pipe 15 with .the tongues in the pockets. It 1s then advanced toward the pipe 17 on to which it is screwed, the' shoulders of each section drawing the pipe 15 tightly against the end of the pipe 17 as the coupling is screwed up. This will make as effective a joint as a solid coupling 'as it will be seen it cannot pull apart -for the .reason that when it is threaded on to the end of the pipel the tongues are locked by the pipe as the distance'between the tips of the tongues ES and 7 to the tip of the tongue 8 of each section is more than half the circumference ofthe pipe 17 on which the sec tion is screwed. Assuming that for any reason whatever it is desired to remove the coupling and that the pipe 15 is a peqmanent structure or cannot be easily` undone one has little diliculty in getting the coupling ofi' as he has only to unscrew it from the pipe 17 and then pull itapart.

What I claim esmy invention is 1. A coupling comprising, complementary interiorly threaded sections provided with curved extending tongues, and having a plurality of unbroken angular outer faces, and receiving pockets, said tongues being threaded and overlapping a portion of the inner face of the adjacent section whereby an unbroken threaded interior surface and an outer hexagonal surface is obtained when the sections are assembled.

2. A coupling comprising, two sections of equal size having threaded semi-circular inner faces, and provided with threaded vton esl extendin from said threaded faces. 'o :fr l

the threads of the tongues and inner faces of one section registering with `the corresponding threads of the opposing section when said sections abut, and receiving pockets arranged concentric to the common center of the coupling, the tongues of said sec? tions extending beyond and overlapping the inner face of abutting edges of said sections when the sections are assembled, and the outer faces of'said sections being of hexagona 10 s formation. Signed at Wimiipeg this 18 day of March RICHARD LAN DGRGE BEATTIE.

Inthe presence of L. BOXBAUGH,

Fosfmn. 

